坡度系统和他们的性质的所有类型被讨论。二个问题与坡度系统连接了,机械系统被学习。一个人是把一个机械系统转变成一个坡度系统的直接问题,并且其它是反的问题,它把一个坡度系统正在转变成一个机械系统。
All types of gradient systems and their properties are discussed. Two problems connected with gradient systems and mechanical systems are studied. One is the direct problem of transforming a mechanical system into a gradient system, and the other is the inverse problem, which is transforming a gradient system into a mechanical system.